Apple-2gs-SW/hush
1
0
Fork 0
mirror of https://github.com/sheumann/hush.git synced 2024-12-26 10:32:02 +00:00
Code Issues Projects Releases Wiki Activity

readlink(2) does not NULL terminate the buffer it reads in, but tar expected it

Browse Source 
to do so.  This caused symlinks stored in tarballs to likely have trailing
crap in the stored symlink named.  Oops.
 -Erik
This commit is contained in:
Eric Andersen 2000-06-26 10:54:06 +00:00
parent 10dc9d4d17
commit 3adffb7fc8
2 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
archival/tar.c
View File

@ -824,12 +824,15 @@ writeTarHeader(struct TarBallInfo *tbInfo, const char *fileName, struct stat *st
/* WARNING/NOTICE: I break Hard Links */
if (S_ISLNK(statbuf->st_mode)) {
int link_size=0;
char buffer[BUFSIZ];
header.typeflag = SYMTYPE;
if ( readlink(fileName, buffer, sizeof(buffer) - 1) < 0) {
link_size = readlink(fileName, buffer, sizeof(buffer) - 1);
if ( link_size < 0) {
errorMsg("Error reading symlink '%s': %s\n", header.name, strerror(errno));
return ( FALSE);
}
buffer[link_size] = '\0';
strncpy(header.linkname, buffer, sizeof(header.linkname));
} else if (S_ISDIR(statbuf->st_mode)) {
header.typeflag = DIRTYPE;

5
tar.c
View File

@ -824,12 +824,15 @@ writeTarHeader(struct TarBallInfo *tbInfo, const char *fileName, struct stat *st
/* WARNING/NOTICE: I break Hard Links */
if (S_ISLNK(statbuf->st_mode)) {
int link_size=0;
char buffer[BUFSIZ];
header.typeflag = SYMTYPE;
if ( readlink(fileName, buffer, sizeof(buffer) - 1) < 0) {
link_size = readlink(fileName, buffer, sizeof(buffer) - 1);
if ( link_size < 0) {
errorMsg("Error reading symlink '%s': %s\n", header.name, strerror(errno));
return ( FALSE);
}
buffer[link_size] = '\0';
strncpy(header.linkname, buffer, sizeof(header.linkname));
} else if (S_ISDIR(statbuf->st_mode)) {
header.typeflag = DIRTYPE;